Decluttering a hoarder’s study tips?

[u/Cool-Alfalfa]

My father has reluctantly agreed to let me declutter his study.

It is stuffed with old machinery, houseware, technology etc - half the room is inaccessible.

Do you have any good tips on being ruthless when disposing of unnecessary items?

So far I have:

• If you haven't used it in a year it can probably go
• If you haven't "got around to fixing it" in a year you probably won't

Thank you

[u/restlessoverthinking]

If he's been keeping it for a 'just in case' scenario and it can be bought for $20 or less then let it go.

[u/Cool-Alfalfa → u/restlessoverthinking]

Just the kind of tip I was after- thank you!